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  1. Lucene - Core
  2. LUCENE-1676

New Token filter for adding payloads "in-stream"

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    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.9
    • Component/s: modules/analysis
    • Labels:
      None

      Description

      This TokenFilter is able to split a token based on a delimiter and use one part as the token and the other part as a payload. This allows someone to include payloads inline with tokens (presumably setup by a pipeline ahead of time). An example is apropos. Given a | delimiter, we could have a stream that looks like:

      The quick|JJ red|JJ fox|NN jumped|VB over the lazy|JJ brown|JJ dogs|NN

      In this case, this would produce tokens and payloads (assuming whitespace tokenization):
      Token: the
      Payload: null

      Token: quick
      Payload: JJ

      Token: red
      Pay: JJ.

      and so on.

      This patch will also support pluggable encoders for the payloads, so it can convert from the character array to byte arrays as appropriate.

        Attachments

        1. LUCENE-1676.patch
          21 kB
          Grant Ingersoll

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            • Assignee:
              gsingers Grant Ingersoll
              Reporter:
              gsingers Grant Ingersoll
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              Dates

              • Created:
                Updated:
                Resolved: